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Epidemiology of Plasmodium malariae and Plasmodium ovale spp. in Kinshasa Province, Democratic Republic of Congo

Article scientifique 2023 Anglais

Résumé

Reports suggest non-falciparum species are an underappreciated cause of malaria in sub-Saharan Africa but their epidemiology is ill-defined, particularly in highly malaria-endemic regions. We estimated incidence and prevalence of PCR-confirmed non-falciparum and Plasmodium falciparum malaria infections within a longitudinal study conducted in Kinshasa, Democratic Republic of Congo (DRC) between 2015-2017. Children and adults were sampled at biannual household surveys and routine clinic visits. Among 9,089 samples from 1,565 participants, incidences of P. malariae, P. ovale spp., and P. falciparum infections by 1-year were 7.8% (95% CI: 6.4%-9.1%), 4.8% (95% CI: 3.7%-5.9%) and 57.5% (95% CI: 54.4%-60.5%), respectively. Non-falciparum prevalences were higher in school-age children, rural and peri-urban sites, and P. falciparum co-infections. P. falciparum remains the primary driver of malaria in the DRC, though non-falciparum species also pose an infection risk. As P. falciparum interventions gain traction in high-burden settings, continued surveillance and improved understanding of non-falciparum infections are warranted.

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Sendor, R., Banek, K., Kashamuka, M., Mvuama, N., Bala, J., Nkalani, M., Kihuma, G., Atibu, J., Thwai, K., Svec, W., Goel, V., Nseka, T., Lin, J., Bailey, J., Emch, M., Carrel, M., Juliano, J., Tshefu, A., Parr, J. (2023). Epidemiology of Plasmodium malariae and Plasmodium ovale spp. in Kinshasa Province, Democratic Republic of Congo. https://doi.org/10.1038/s41467-023-42190-w

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Auteur(s)

Rachel Sendor Kristin Banek Melchior Mwandagalirwa Kashamuka Nono Mvuama Joseph A. Bala Marthe Nkalani Georges Kihuma Joseph Atibu Kyaw L. Thwai W. Matthew Svec Varun Goel Tommy Nseka Jessica T. Lin Jeffrey A. Bailey Michael Emch Margaret Carrel Jonathan J. Juliano Antoinette Tshefu Jonathan B. Parr

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